Designed for use with 18-8 stainless steel screws

1-8 x 13 Socket Cap Screw Alloy

6 x 1 Phillips Bugle Fine Drywall Screws Phosphate Coated - Carton (10

#56 Heavy Duty Drill Bit - Stubby Length

5/8 x 21 ITM SDS Max X-Cutter Hammer Drill Bit

5/16-24 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (4000) Flat Washers Silicon Bronze Designed for use with 18-85 16 24 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (4000). L9 High Tensile Strength Hex Collared Locknuts are designed for use in high stress, severe service environments. The highest mechanical strength off the shelf fastening system available, its special features control torque tension characteristics to develop high clamp loads when using properly controlled tightening methods. Brighton Best manufactures L9 nuts from AISI